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<strong class="selflink"> Filesystem library</strong><div class="t-navbar-menu"><div>
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<p>The Filesystem library provides facilities for performing operations on file systems and their components, such a paths, regular files, and directories.
</p>
<p>The Filesystem library currently is described not in the C++ standard, but in separate Technical Specification. It is implementation-defined whether the Filesystem library is provided.
</p>
<p>Some functionality may not be provided by the implementation if the underlying file system does not support it.
</p>
<p>The behavior of the implementation may be different than described here in the presence of file-system races.
</p>
<p><br>
</p>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="fs/path.html" title="cpp/experimental/fs/path"> <span class="t-lines"><span>path</span></span></a></div></div>
</td>
<td>   represents a path  <br> <span class="t-mark">(class)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/filesystem_error.html" title="cpp/experimental/fs/filesystem error"> <span class="t-lines"><span>filesystem_error</span></span></a></div></div>
</td>
<td>   an exception thrown on file system errors <br> <span class="t-mark">(class)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/directory_entry.html" title="cpp/experimental/fs/directory entry"> <span class="t-lines"><span>directory_entry</span></span></a></div></div>
</td>
<td>   a directory entry <br> <span class="t-mark">(class)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/directory_iterator.html" title="cpp/experimental/fs/directory iterator"> <span class="t-lines"><span>directory_iterator</span></span></a></div></div>
</td>
<td>   an iterator to the contents of the directory <br> <span class="t-mark">(class)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/recursive_directory_iterator.html" title="cpp/experimental/fs/recursive directory iterator"> <span class="t-lines"><span>recursive_directory_iterator</span></span></a></div></div>
</td>
<td>   an iterator to the contents of a directory and its subdirectories <br> <span class="t-mark">(class)</span> 
</td>
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<td colspan="2">
</td>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="fs/file_type.html" title="cpp/experimental/fs/file type"> <span class="t-lines"><span>file_type</span></span></a></div></div>
</td>
<td>   the type of a file <br> <span class="t-mark">(enum)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/perms.html" title="cpp/experimental/fs/perms"> <span class="t-lines"><span>perms</span></span></a></div></div>
</td>
<td>   identifies file system permissions <br> <span class="t-mark">(enum)</span> 
</td>
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</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/file_status.html" title="cpp/experimental/fs/file status"> <span class="t-lines"><span>file_status</span></span></a></div></div>
</td>
<td>   represents file type and permissions <br> <span class="t-mark">(class)</span> 
</td>
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</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/space_info.html" title="cpp/experimental/fs/space info"> <span class="t-lines"><span>space_info</span></span></a></div></div>
</td>
<td>   information about free and available space on the filesystem <br> <span class="t-mark">(class)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/copy_options.html" title="cpp/experimental/fs/copy options"> <span class="t-lines"><span>copy_options</span></span></a></div></div>
</td>
<td>   specifies semantics of copy operations <br> <span class="t-mark">(enum)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/directory_options.html" title="cpp/experimental/fs/directory options"> <span class="t-lines"><span>directory_options</span></span></a></div></div>
</td>
<td>   options for iterating directory contents <br> <span class="t-mark">(enum)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/file_time_type.html" title="cpp/experimental/fs/file time type"> <span class="t-lines"><span>file_time_type</span></span></a></div></div>
</td>
<td>   represents file time values <br> <span class="t-mark">(typedef)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/absolute.html" title="cpp/experimental/fs/absolute"> <span class="t-lines"><span>absolute</span></span></a></div></div>
</td>
<td>   composes an absolute path <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/canonical.html" title="cpp/experimental/fs/canonical"> <span class="t-lines"><span>canonical</span></span></a></div></div>
</td>
<td>   composes a canonical path <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/copy.html" title="cpp/experimental/fs/copy"> <span class="t-lines"><span>copy</span></span></a></div></div>
</td>
<td>   copies files or directories <br> <span class="t-mark">(function)</span> 
</td>
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<tr class="t-dsc-sep">
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<td>  <div class="t-dsc-member-div"><div><a href="fs/copy_file.html" title="cpp/experimental/fs/copy file"> <span class="t-lines"><span>copy_file</span></span></a></div></div>
</td>
<td>   copies file contents <br> <span class="t-mark">(function)</span> 
</td>
</tr>

<tr class="t-dsc-sep">
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<td>  <div class="t-dsc-member-div"><div><a href="fs/copy_symlink.html" title="cpp/experimental/fs/copy symlink"> <span class="t-lines"><span>copy_symlink</span></span></a></div></div>
</td>
<td>   copies a symbolic link <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/create_directory.html" title="cpp/experimental/fs/create directory"> <span class="t-lines"><span>create_directory</span><span>create_directories</span></span></a></div></div>
</td>
<td>   creates new directory <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/create_hard_link.html" title="cpp/experimental/fs/create hard link"> <span class="t-lines"><span>create_hard_link</span></span></a></div></div>
</td>
<td>   creates a hard link <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/create_symlink.html" title="cpp/experimental/fs/create symlink"> <span class="t-lines"><span>create_symlink</span><span>create_directory_symlink</span></span></a></div></div>
</td>
<td>   creates a symbolic link <br> <span class="t-mark">(function)</span> 
</td>
</tr>

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<td>  <div class="t-dsc-member-div"><div><a href="fs/current_path.html" title="cpp/experimental/fs/current path"> <span class="t-lines"><span>current_path</span></span></a></div></div>
</td>
<td>   return current working directory <br> <span class="t-mark">(function)</span> 
</td>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="fs/exists.html" title="cpp/experimental/fs/exists"> <span class="t-lines"><span>exists</span></span></a></div></div>
</td>
<td>   checks whether path refers to existing file system object  <br> <span class="t-mark">(function)</span> 
</td>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="fs/equivalent.html" title="cpp/experimental/fs/equivalent"> <span class="t-lines"><span>equivalent</span></span></a></div></div>
</td>
<td>   checks whether two paths refer to the same file system object <br> <span class="t-mark">(function)</span> 
</td>
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<tr class="t-dsc-sep">
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<td>  <div class="t-dsc-member-div"><div><a href="fs/file_size.html" title="cpp/experimental/fs/file size"> <span class="t-lines"><span>file_size</span></span></a></div></div>
</td>
<td>   returns the size of a file <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/hard_link_count.html" title="cpp/experimental/fs/hard link count"> <span class="t-lines"><span>hard_link_count</span></span></a></div></div>
</td>
<td>   returns the number of hard links referring to the specific file <br> <span class="t-mark">(function)</span> 
</td>
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<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="File_types">  File types </span>
</h5>
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/is_block_file.html" title="cpp/experimental/fs/is block file"> <span class="t-lines"><span>is_block_file</span></span></a></div></div>
</td>
<td>   checks whether the given path refers to block file <br> <span class="t-mark">(function)</span> 
</td>
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<tr class="t-dsc-sep">
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<td>  <div class="t-dsc-member-div"><div><a href="fs/is_character_file.html" title="cpp/experimental/fs/is character file"> <span class="t-lines"><span>is_character_file</span></span></a></div></div>
</td>
<td>   checks whether the given path refers to a character file <br> <span class="t-mark">(function)</span> 
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="fs/is_directory.html" title="cpp/experimental/fs/is directory"> <span class="t-lines"><span>is_directory</span></span></a></div></div>
</td>
<td>   checks whether the given path refers to a directory <br> <span class="t-mark">(function)</span> 
</td>
</tr>

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<td>  <div class="t-dsc-member-div"><div><a href="fs/is_empty.html" title="cpp/experimental/fs/is empty"> <span class="t-lines"><span>is_empty</span></span></a></div></div>
</td>
<td>   checks whether the given path refers to an empty file or directory <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/is_fifo.html" title="cpp/experimental/fs/is fifo"> <span class="t-lines"><span>is_fifo</span></span></a></div></div>
</td>
<td>   checks whether the given path refers to a FIFO <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/is_other.html" title="cpp/experimental/fs/is other"> <span class="t-lines"><span>is_other</span></span></a></div></div>
</td>
<td>   checks whether the argument refers to an <i>other</i> file <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/is_regular_file.html" title="cpp/experimental/fs/is regular file"> <span class="t-lines"><span>is_regular_file</span></span></a></div></div>
</td>
<td>   checks whether the argument refers to a regular file <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/is_socket.html" title="cpp/experimental/fs/is socket"> <span class="t-lines"><span>is_socket</span></span></a></div></div>
</td>
<td>   checks whether the argument refers to a socket <br> <span class="t-mark">(function)</span> 
</td>
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<td>  <div class="t-dsc-member-div"><div><a href="fs/is_symlink.html" title="cpp/experimental/fs/is symlink"> <span class="t-lines"><span>is_symlink</span></span></a></div></div>
</td>
<td>   checks whether the argument refers to a symbolic link <br> <span class="t-mark">(function)</span> 
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<td>  <div class="t-dsc-member-div"><div><a href="fs/temp_directory_path.html" title="cpp/experimental/fs/temp directory path"> <span class="t-lines"><span>temp_directory_path</span></span></a></div></div>
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<td>   returns a directory suitable for temporary files <br> <span class="t-mark">(function)</span> 
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